var app = app || {};
(function() {
	/*日期格式化*/
	Date.prototype.format = function(fmt) {
		var o = {
			"M+": this.getMonth() + 1,
			"d+": this.getDate(),
			"h+": this.getHours(),
			"m+": this.getMinutes(),
			"s+": this.getSeconds(),
			"q+": Math.floor((this.getMonth() + 3) / 3),
			"S": this.getMilliseconds()
		};
		if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
		for (var k in o)
			if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
		return fmt;
	}
	
	var Utils=app.Utils={};
	Utils.classNames=function(obj){
		var cn=[];
		for(var key in obj){
			if(obj[key])cn.push(key);
		}
		return cn.join(" ");
	}
})();